UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
General Certificate of Education Ordinary Level
5126/01
SCIENCE (CHEMISTRY, BIOLOGY)
Paper 1 Multiple Choice
October/November 2004
1 hour
Additional Materials:
Multiple Choice Answer Sheet
Soft clean eraser
Soft pencil (type B or HB is recommended)
READ THESE INSTRUCTIONS FIRST
Write in soft pencil.
Do not use staples, paper clips, highlighters, glue or correction fluid.
Write your name, Centre number and candidate number on the answer sheet in the spaces provided unless
this has been done for you.
There are forty questions on this paper. Answer all questions. For each question there are four possible
answers A, B, C, and D.
Choose the one you consider correct and record your choice in soft pencil on the separate answer sheet.
Read the instructions on the Answer Sheet very carefully.
Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be done in this booklet.
A copy of the Periodic Table is printed on page 20.
This document consists of 17 printed pages and 3 blank pages.
IB04 11_5126_01/FP
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2
1
2
Which statement about the molecules in carbon dioxide gas is correct?
A
The molecules are close together.
B
The molecules are diatomic.
C
The molecules are in fixed positions.
D
The molecules move randomly.
Which piece of apparatus would be most suitable to measure accurately the volume of acid
needed to neutralise 25.0 cm3 of an alkali?
0
5
10
15
20
25
30
35
40
45
50
100
90
80
70
60
50
25
cm3
40
30
20
10
A
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B
C
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100
75
50
25
D
3
3
Which diagram shows the structure of a 73 Li atom?
B
A
e
e
e
3p
4n
e
C
e
4
5
6
e
n = neutron
e = electron
4p
3n
e
e
key
p = proton
e
D
e
e
3p
4n
4p
3n
e
e
e
Which statement describes the formation of a chloride ion from a chlorine atom?
A
The atom gains one electron.
B
The atom gains two electrons.
C
The atom loses one electron.
D
The atom loses two electrons.
Which mass of oxygen combines with 12 g of magnesium?
A
4g
B
8g
C
16 g
D
32 g
Which volume of sulphur dioxide (at r.t.p.) is formed when 9.7 g of zinc sulphide is heated in air?
2ZnS + 3O2 → 2ZnO + 2SO2
A
1.2 dm3
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B
2.4 dm3
C
3.6 dm3
D
4.8 dm3
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4
7
Two experiments were carried out using the apparatus as shown.
cotton wool
flask
hydrochloric acid
marble chips
balance
In experiment 1, dilute hydrochloric acid was used.
In experiment 2, concentrated hydrochloric acid was used.
All other conditions were the same and in both experiments all the marble chips had completely
reacted.
Which diagram shows the results obtained?
B
A
key
experiment 1
experiment 2
balance
reading
balance
reading
time
time
C
balance
reading
D
balance
reading
time
8
time
Which salt can be prepared by the reaction between a soluble metal hydroxide and dilute
sulphuric acid?
A
copper(II) sulphate
B
iron(II) sulphate
C
lead(II) sulphate
D
potassium sulphate
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9
Many crops will not grow well in an acidic soil.
Which type of chemical reaction takes place when farmers add calcium hydroxide to the soil?
A
decomposition
B
fertilisation
C
neutralisation
D
reduction
10 Which element in the table is a metal?
element
melting point
in oC
density
in g / cm3
A
-7
3.10
B
44
1.82
C
113
2.07
D
1083
8.92
11 Experiments are carried out to arrange metals X, Y and Z in order of decreasing reactivity.
The table shows the results.
experiment
X
Y
Z
Does the metal liberate hydrogen from
dilute hydrochloric acid?
yes
no
yes
Is the metal oxide reduced by
heating with carbon?
yes
yes
no
What is the order of reactivity of the metals?
most reactive
least reactive
A
X
Z
Y
B
Y
X
Z
C
Z
X
Y
D
Z
Y
X
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12 Different forms of steel contain differing amounts of carbon.
Steel P contains a high proportion of carbon.
Steel Q contains a low proportion of carbon.
Which statement is correct?
A
P is stronger but more brittle than Q
B
P is stronger but less brittle than Q
C
P is less strong but more brittle than Q
D
P is less strong but less brittle than Q
13 Iron filings are left to rust in the apparatus shown.
Which letter indicates the water level when all the oxygen has reacted?
graduated
tube
iron filings
10
20
30
40
50
water level
at start
10
20
30
40
50
water
14 The following gases are present in car exhaust fumes.
•
carbon dioxide
•
nitrogen dioxide
•
carbon monoxide
•
water vapour
•
nitrogen
Which of these gases is also present in unpolluted air?
A
nitrogen only
B
nitrogen and water vapour only
C
nitrogen, carbon dioxide and water vapour only
D
nitrogen, carbon monoxide, carbon dioxide and water vapour only
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graduated
tube
rusty iron
filings
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A
B
C
D
7
15 Desalination is the removal of sodium chloride from sea water.
Which method is used in the laboratory to desalinate sea water?
A
chromatography
B
crystallisation
C
distillation
D
filtration
16 A compound, X, has the molecular structure as shown.
O
C
H
C
OH
C
H
O
C
OH
How can X be described?
A
both as an alkane and as an acid
B
both as an alkene and as an acid
C
both as an alkane and as an alcohol
D
both as an alkene and as an alcohol
17 Which statement about the homologous series of alcohols is not true?
A
They all contain oxygen.
B
They can be represented by a general formula.
C
They exhibit a gradual change in physical properties.
D
They have the same empirical formula.
18 The structures of four organic compounds are shown.
1
H
H
H
C
3
2
C
H
H
H
H
H
H
C
C
C
H
H
H
4
H
H
H
H
C
C
H
H
H
C
H
C
H
O
C
O
H
Which compounds decolourise aqueous bromine?
A
1 and 2
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B
1 and 3
C
2 and 4
D
3 and 4
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19 Methane is used as a fuel.
Which property is essential for this use?
A
It burns exothermically.
B
It is a gas.
C
It is odourless.
D
It has a low boiling point.
20 The following formula represents a monomer.
H
H
C
CH3
C
Cl
Which formula shows a part of the polymer chain formed from 3 molecules of the monomer?
A
B
C
H
H
H
H
H
H
C
C
C
C
C
C
CH3 CH3 Cl
Cl
CH3 CH3
H
H
H
H
H
H
C
C
C
C
C
C
CH3 Cl
CH3 Cl
CH3 Cl
Cl
H
Cl
H
Cl
H
C
C
C
C
C
C
CH3 CH3 CH3 CH3 CH3 CH3
D
H
Cl
H
Cl
H
Cl
C
C
C
C
C
C
H
CH3 H
CH3 H
CH3
21 Which feature of a root hair cell indicates that it is from a plant and not from an animal?
A
cell membrane
B
cell wall
C
chloroplast
D
cytoplasm
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22 Which cell is biconcave in shape?
A
red blood cell
B
root hair cell
C
white blood cell
D
xylem cell
23 The sentence describes the uptake of water by a plant.
Water moves into the root hairs of a plant by osmosis through a ...…X…... permeable cell
membrane, ……Y…… a water potential gradient.
Which words complete spaces X and Y?
X
Y
A
fully
up
B
fully
down
C
partially
up
D
partially
down
24 The graph shows the relationship between temperature and the activity of the enzyme amylase
that breaks down starch to sugar.
rate of
enzyme
activity
10
20
30
40
50
60
temperature / oC
From the graph, which statement is correct?
A
Amylase works best at 55 oC.
B
Starch will not be broken down below 10 oC.
C
Sugar is produced most rapidly at 45 oC.
D
The higher the temperature, the faster the amylase works.
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10
25 What is the correct equation for photosynthesis?
A
carbohydrate + oxygen → water + carbon dioxide
B
carbohydrate + carbon dioxide → oxygen + water
C
carbon dioxide + oxygen → carbohydrate + water
D
carbon dioxide + water → carbohydrate + oxygen
26 A plant has leaves that are partly green and partly white. The plant is destarched, and a leaf is
partly covered by black paper.
The plant is placed in bright light for several hours. Four discs are then cut from the leaf in the
positions shown and are tested for starch.
black paper
1
3
2
green area
white area
4
Which discs contain starch?
A
1 only
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B
1 and 2
C
2 only
D
3 and 4
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27 The diagram shows some food moving along the alimentary canal by peristalsis.
X
wall of alimentary canal
direction of
movement
of food
food
What are the muscles in the wall of the alimentary canal doing at point X?
circular muscles
longitudinal muscles
A
contracting
contracting
B
contracting
relaxing
C
relaxing
contracting
D
relaxing
relaxing
28 Which substance, released into the alimentary canal, contains no enzymes but speeds up fat
digestion?
A
bile
B
intestinal juice
C
pancreatic juice
D
saliva
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29 A piece of a plant with a transparent stem was placed in a beaker containing a blue dye and then
examined 5 hours later.
blue
dye
blue
dye
start
5 hours later
Which explains the change in appearance?
A
Blue dye diffuses through the cells of the plant.
B
Blue dye moves up the stem by osmosis.
C
Blue dye moves up through the xylem.
D
Blue dye stains cells in the leaves.
30 A woman has fewer red blood cells than normal.
What would be the effect of this?
A
Her blood contains high levels of urea.
B
Her blood does not clot properly.
C
Her body cells do not get enough oxygen.
D
She cannot fight off infections.
31 What are the conditions in the muscles when lactic acid is produced?
concentration of
carbon dioxide
supply of oxygen
A
high
less than oxygen demand
B
high
more than oxygen demand
C
low
less than oxygen demand
D
low
more than oxygen demand
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32 The diagram shows a section through the eye.
P
Q
retina
R
S
Which pair of structures focus light rays onto the retina?
A
P and Q
B
P and R
C
Q and R
D
Q and S
33 What may happen to a heroin addict 48 hours after the drug is withdrawn?
A
Desire for the drug is reduced.
B
The addiction is cured.
C
Tolerance to the drug increases.
D
Vomiting, sweating and cramp occur.
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34 The diagram shows a food web from a freshwater pond.
large fish
frogs
water
beetles
small
fish
tadpoles
water fleas
insect
larvae
water plants
Which organisms are herbivores and which are carnivores?
herbivores
carnivores
A
small fish
large fish
B
tadpoles
frogs
C
water fleas
insect larvae
D
water plants
water beetles
35 The diagram shows the carbon cycle.
carbon dioxide
in the air
Q
P
carbohydrates
in plants
dead
matter
S
R
carbohydrates
in animals
Which parts of the cycle form parts of food chains?
A
P and Q
B
P and S
C
Q and R
D
R and S
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36 Which property of modern insecticides helps to keep environmental pollution at the lowest level?
A
They accumulate in the bodies of predators.
B
They are broken down by soil bacteria.
C
They are easily washed into lakes and rivers.
D
They are taken up by plant roots.
37 What conditions are needed for the germination of most seeds?
light
oxygen
water
A
B
C
D
38 The diagram shows a section of a seed.
1
2
3
What are the numbered parts?
1
2
3
A
cotyledon
plumule
radicle
B
plumule
cotyledon
radicle
C
plumule
radicle
cotyledon
D
radicle
plumule
cotyledon
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39 The diagram shows part of the male reproductive system.
P
Q
R
S
T
Which structures produce seminal fluid and sperm?
seminal fluid
sperm
A
P
Q
B
Q
R
C
R
S
D
S
T
40 In peas, the allele S for smooth seeds is dominant over s for wrinkled seeds.
200 plants with the genotype Ss are self-pollinated and 1500 smooth seeds are collected.
How many wrinkled seeds are collected?
A
4500
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B
2000
C
1500
D
500
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20
Calcium
Strontium
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88
89
Key
b
X
a
b = proton (atomic) number
X = atomic symbol
a = relative atomic mass
*58-71 Lanthanoid series
90-103 Actinoid series
87
Ac
Actinium
Ra
Radium
Fr
Francium
72
Hafnium
Lanthanum
*
Hf
57
178
40
Zirconium
Zr
91
Titanium
139
Yttrium
22
48
Ti
La
39
Y
89
Scandium
21
227
Barium
Caesium
56
Ba
Cs
45
Sc
226
55
137
133
38
Rubidium
37
88
Sr
85
Rb
19
Potassium
40
Ca
39
Magnesium
Sodium
12
24
Mg
23
Na
Beryllium
4
Lithium
K
11
3
9
Be
7
II
Li
I
51
93
Ta
181
Niobium
Nb
90
58
73
52
96
Mo
W
184
Protactinium
Thorium
55
Tc
Re
186
144
Nd
92
60
Uranium
U
238
Neodymium
75
Rhenium
43
Technetium
25
Manganese
Mn
27
59
28
59
29
64
30
65
5
6
Ru
101
Iron
Pm
Osmium
Os
190
Np
93
Neptunium
61
Promethium
76
44
Ruthenium
26
56
Fe
150
Sm
Pu
94
Plutonium
62
152
Eu
Am
95
Americium
63
Europium
78
Platinum
Pt
Iridium
195
Ir
46
Palladium
Pd
106
Nickel
Ni
192
Samarium
77
45
Rhodium
Rh
103
Cobalt
Co
Gd
157
Gold
Au
197
Silver
96
64
Curium
Cm
Gadolinium
79
47
Ag
108
Copper
Cu
201
Bk
Terbium
Tb
159
Mercury
Hg
97
Berkelium
65
80
48
Cadmium
Cd
112
Zinc
Zn
Dy
162
Thallium
Tl
204
Indium
Cf
98
Californium
66
Es
Holmium
Ho
165
Lead
Pb
207
Tin
99
Einsteinium
67
82
50
119
Sn
115
32
Germanium
Ge
73
Silicon
In
Gallium
Dysprosium
81
49
31
70
Ga
14
28
Si
Carbon
27
Aluminium
13
12
C
Al
Boron
B
11
7
75
Sb
122
Arsenic
As
Bi
209
Fermium
Fm
Erbium
Er
167
Bismuth
100
68
83
51
Antimony
33
15
Phosphorus
P
31
Nitrogen
N
14
8
Se
79
Sulphur
Po
169
Md
Thulium
Tm
101
Mendelevium
69
84
Polonium
52
Tellurium
Te
128
Selenium
34
16
S
32
Oxygen
O
16
9
Yb
173
Astatine
At
Iodine
I
127
Bromine
Br
80
Chlorine
No
102
Nobelium
70
Ytterbium
85
53
35
17
Cl
35.5
Fluorine
F
19
2
0
Lr
Lutetium
Lu
175
Radon
Rn
Xenon
Xe
131
Krypton
Kr
84
Argon
Ar
40
Neon
103
Lawrencium
71
86
54
36
18
10
Ne
20
Helium
VII
Hydrogen
VI
4
V
He
IV
H
III
1
The volume of one mole of any gas is 24 dm3 at room temperature and pressure (r.t.p.).
91
Pa
Th
232
Praseodymium
Cerium
59
141
Pr
140
74
Tungsten
42
Molybdenum
24
Chromium
Cr
Ce
Tantalum
41
23
Vanadium
V
1
Group
DATA SHEET
The Periodic Table of the Elements
20
University of Cambridge International Examinations is part of the University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department
of the University of Cambridge.